Suppression of complete fusion due to breakup in the reactions B10,11+Bi209

L. R. Gasques; D. J. Hinde; M. Dasgupta; A. Mukherjee; R. G. Thomas

doi:10.1103/PhysRevC.79.034605

Suppression of complete fusion due to breakup in the reactions B10,11+Bi209

L. R. Gasques, D. J. Hinde, M. Dasgupta, A. Mukherjee, R. G. Thomas

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

Abstract

Above-barrier cross sections of fission and α-active heavy reaction products were measured for the reactions of B10,11 with Bi209. Systematic analysis showed that the fission originates almost exclusively from complete fusion (CF). Existing measurements of above-barrier fusion products for the Si30+W186 reaction, assumed to proceed exclusively through CF, were extrapolated to the current systems using statistical model calculations. This extrapolation showed that the heavy reaction products from the B10,11+Bi209 reactions include substantial components from incomplete fusion as well as from CF. Compared with fusion calculations without breakup, the CF cross sections are suppressed by 15% for B10 and 7% for B11. A consistent and systematic variation of the suppression of CF for reactions of the weakly bound nuclei Li6,7, Be9, and B10,11 on targets of Pb208 and Bi209 is found as a function of the breakup threshold energy.

Original language	English
Article number	034605
Journal	Physical Review C - Nuclear Physics
Volume	79
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.79.034605
Publication status	Published - 3 Mar 2009

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abstract = "Above-barrier cross sections of fission and α-active heavy reaction products were measured for the reactions of B10,11 with Bi209. Systematic analysis showed that the fission originates almost exclusively from complete fusion (CF). Existing measurements of above-barrier fusion products for the Si30+W186 reaction, assumed to proceed exclusively through CF, were extrapolated to the current systems using statistical model calculations. This extrapolation showed that the heavy reaction products from the B10,11+Bi209 reactions include substantial components from incomplete fusion as well as from CF. Compared with fusion calculations without breakup, the CF cross sections are suppressed by 15% for B10 and 7% for B11. A consistent and systematic variation of the suppression of CF for reactions of the weakly bound nuclei Li6,7, Be9, and B10,11 on targets of Pb208 and Bi209 is found as a function of the breakup threshold energy.",

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AU - Thomas, R. G.

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Suppression of complete fusion due to breakup in the reactions B10,11+Bi209

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